TNPSC Group I 2025 Previous Year Question Paper
• Based on the official TNPSC Group I Preliminary Examination 2025 Question Paper.
• Covers General Studies, Aptitude & Mental Ability, and Current Affairs as prescribed in the TNPSC Group I syllabus.
• Includes bilingual questions (English & Tamil) exactly as presented in the official question paper.
• Attempt all questions to evaluate your preparation for the TNPSC Group I Preliminary Examination.
• Follow the prescribed examination time to simulate the actual exam environment.
• Review the answer key and explanations after completing the quiz to identify strengths and improve performance.
Questions
200
Duration
180m
Marks
100
Question Preview
1
Which of statements are True?
(i) Octane number increases with chain length.
(ii) Cycloalkanes have higher Octane number than straight chain alkanes.
(iii) Alkenes and aromatic hydrocarbon have higher Octane number than straight chain alkanes.
(iv) Branched chain alkanes have lower octane number than straight chain alkanes.
(i) and (iv)
(i) and (ii)
(ii) and (iii)
(i), (ii), (iii) and (iv)
Answer not known
2
Match the following hormone with the disorder caused :
(a) Insulin — 1. Cushing’s syndrome
(b) Thyroxine — 2. Diabetes insipidus
(c) Glucocorticoids — 3. Acromegaly
(d) Growth hormone — 4. Goitre
5. Diabetes Mellitus
(a)-5 (b)-1 (c)-2 (d)-3
(a)-2 (b)-4 (c)-3 (d)-1
(a)-5 (b)-4 (c)-1 (d)-3
(a)-2 (b)-4 (c)-1 (d)-3
Answer not known
3
Choose the right matches :
(1) Carotenoid — C55H70O5N4Mg
(2) Chlorophyll ‘a’ — C55H72O5N4Mg
(3) Chlorophyll ‘b’ — C55H70O6N4Mg
(4) Xanthophyll — C50H70O5Mg
(1) and (2) are correct
(3) and (4) are correct
(2) and (3) are correct
(1) and (4) are correct
Answer not known
4
The Nobel Prize in Medicine was awarded to Victor Ambros and Gary Ruvkun for their discovery of
Expression Sequence Tags
Micro RNA
DNA micro array
SNP’s
Answer not known
5
Which of the following statements are true about crew selection and training for “Gaganyaan Mission”?
(i) Crews are selected after clinical, psychological and aeromedical examination.
(ii) Mission-specific training will be conducted at ISRO, Trivandrum.
(iii) Selected astronauts will undergo their generic spaceflight training in Yuri Gagarin Cosmonaut training centre, Russia.
(i) and (ii) only
(ii) and (iii) only
(iii) only
(i) and (iii) only
Answer not known
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